Akelah, Ahmed; Abbasi, Mohamed M.; Awad, Mohamed K. H., Indian Journal of Chemistry, Section A: Inorganic, Physical, Theoretical and Analytical, 1986, vol. 25, # 10, p. 923 - 928
Akelah, Ahmed; Abbasi, Mohamed M.; Awad, Mohamed K. H., Indian Journal of Chemistry, Section A: Inorganic, Physical, Theoretical and Analytical, 1986, vol. 25, # 10, p. 923 - 928